... , backward, speed governing and so on.6, System has power failure of memory function and back parameter ... and automatic perforation cutting function.7, System has manual and electric going up and down ... need pneumatics. It can extend fan's life-span.11, System can store 30 files, and each file ... , ensure reliable and stable operation of the CNC system.3, Driven is 1.8 ° stepper motor.4 ...